CN207586652U - A kind of 3-dimensional digital hologram recording apparatus - Google Patents
A kind of 3-dimensional digital hologram recording apparatus Download PDFInfo
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- CN207586652U CN207586652U CN201721411278.3U CN201721411278U CN207586652U CN 207586652 U CN207586652 U CN 207586652U CN 201721411278 U CN201721411278 U CN 201721411278U CN 207586652 U CN207586652 U CN 207586652U
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- speculum
- amici prism
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- collimation lens
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Abstract
The utility model proposes a kind of 3-dimensional digital hologram recording apparatus, belong to Digital Holography field, including laser, the first Amici prism, the first beam expander, the first pinhole filter, the first collimation lens, the first speculum, the second Amici prism, the second speculum, the second beam expander, the second pinhole filter, the second collimation lens and third speculum, off-axis Fresnel holographic interference pattern is obtained on CCD.The utility model has recorded two objects of certain distance difference using a width hologram, and the hologram obtained to record has carried out filtering process, and to improve the contrast of striped, record is clear, and light path is simple.
Description
Technical field
The utility model belongs to Digital Holography field, especially a kind of 3-dimensional digital hologram recording apparatus.
Background technology
Digital holography is based on optical holography basic principle, is remembered using photosensitive electronographic device instead of optical holographic
Material record hologram is recorded, the hologram intensity information of record is transformed into digital signal deposit computer, recycles and calculates
Machine analog references light carries out reproduction imaging to hologram, so as to fulfill the total digitalization of holographic recording and image reconstruction process.From
Axis Fresnel number holographic imaging technology is related to object information recording process and image objects reproducing processes two parts.Object information
In recording process, interference fringe is generated after object light and the reference interference of light, by such as charge coupling device (ccd image collector)
Image acquisition device records；In image objects reproducing processes, by Computer Numerical Simulation optical diffraction process, realize object into
As reconstruct.But existing light path composition is often more complicated, needs multiple optical devices, has higher requirement to adjustment, vibrated
It influences also larger.
Utility model content
The utility model provides a kind of 3-dimensional digital hologram recording apparatus, and record is clear, and light path is simple.
The utility model specifically adopts the following technical scheme that realization：
A kind of 3-dimensional digital hologram recording apparatus, including laser, the first Amici prism, the first beam expander, the first pin hole
Wave filter, the first collimation lens, the first speculum, the second Amici prism, the second speculum, the second beam expander, the filter of the second pin hole
Wave device, the second collimation lens and third speculum；The laser of the laser is divided into object light after first Amici prism
And reference light, the object light is by first beam expander expands, the first pinhole filter filters, is formed after the first collimation lens
Directional light, then by the first speculum reflected illumination on three-dimension object to be recorded, the irreflexive light of three-dimension object is through institute
It states the second Amici prism and enters CCD target surfaces；Reference light is expanded by second speculum reflection, the second beam expanding lens, the second needle
After hole filter filtering, the second collimation lens, become directional light, then reflect through third speculum and the second Amici prism, with three
The combiner that dimension object reflects, is recorded on the CCD target surfaces.
Preferably, the size of the CCD target surfaces is 8.47mm × 7.10mm, pixel dimension is 3.45 μm of 3.45 μ m,
Pixel number is 2456 × 2058.
3-dimensional digital hologram recording apparatus provided by the utility model, advantage are：Utilize a width hologram recording
Two objects of certain distance difference are recorded, and the hologram obtained to record has carried out filtering process, to improve pair of striped
Than degree, record is clear, and light path is simple.
Description of the drawings
Fig. 1 is the light path principle figure of the utility model 3-dimensional digital hologram recording apparatus.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings is in the utility model exposure
A part for appearance mainly to illustrate embodiment, and can coordinate the associated description of specification to explain the running of embodiment original
Reason.With reference to these contents, those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new for cooperation
The advantages of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of 3-dimensional digital hologram recording apparatus provided in this embodiment, is divided including laser 1, first
Prism 2, the first beam expander 3, the first pinhole filter 4, the first collimation lens 5, the first speculum 6, the second Amici prism 7,
Two-mirror 9, the second beam expander 10, the second pinhole filter 11, the second collimation lens 12 and third speculum 13.
The laser of 1 launch wavelength 532nm of laser is divided into object light and reference light, object light warp after the first Amici prism 2
It crosses after the first beam expander expands the 3, first pinhole filter the 4, first collimation lens 5 of filtering and forms directional light, then by the first reflection
For 6 reflected illumination of mirror on three-dimension object to be recorded, the present embodiment includes two three-dimension objects, and one is coin 14, another
For dice 15, the irreflexive light of three-dimension object enters CCD target surfaces 8 through the second Amici prism 7；Reference light passes through the second speculum
The 9, second beam expanding lens of reflection expands the 10, second pinhole filter 11 and filters, after the second collimation lens 12, becomes directional light, then pass through
13 and second Amici prism 14 of third speculum reflects, and the combiner reflected with three-dimension object is recorded on CCD target surfaces 8, most
Off-axis Fresnel holographic interference pattern is obtained on CCD eventually.
The size that CCD target surfaces 8 used are recorded in the present embodiment is 8.47mm × 7.10mm, and pixel dimension is 3.45 μ ms
3.45 μm, pixel number is 2456 × 2058, and the three-dimension object of shooting is that have the dice 15 of certain distance difference and coin 14, dice 15
It is 0.191m to CCD target surfaces 8, the distance of coin 14 to CCD target surfaces 8 is 0.634m.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
Understand, in the spirit and scope for not departing from the utility model that the appended claims are limited, in the form and details
The utility model can be made a variety of changes, be scope of protection of the utility model.
Claims (2)
1. a kind of 3-dimensional digital hologram recording apparatus, which is characterized in that including laser, the first Amici prism, the first beam expander,
First pinhole filter, the first collimation lens, the first speculum, the second Amici prism, the second speculum, the second beam expander,
Two pinhole filters, the second collimation lens and third speculum；The laser of the laser is after first Amici prism
It is divided into object light and reference light, the object light is expanded by first beam expander, the first pinhole filter filters, the first collimation is saturating
Directional light is formed after mirror, then by the first speculum reflected illumination on three-dimension object to be recorded, three-dimension object diffusing reflection
Light enter CCD target surfaces through second Amici prism；Reference light expands by second speculum reflection, the second beam expanding lens
After beam, the filtering of the second pinhole filter, the second collimation lens, become directional light, then through third speculum and the second Amici prism
Reflection, the combiner reflected with three-dimension object are recorded on the CCD target surfaces.
2. a kind of 3-dimensional digital hologram recording apparatus according to claim 1, it is characterised in that：The CCD target surfaces it is big
Small is 8.47mm × 7.10mm, and pixel dimension is 3.45 μm of 3.45 μ m, and pixel number is 2456 × 2058.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721411278.3U CN207586652U (en) | 2017-10-27 | 2017-10-27 | A kind of 3-dimensional digital hologram recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721411278.3U CN207586652U (en) | 2017-10-27 | 2017-10-27 | A kind of 3-dimensional digital hologram recording apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207586652U true CN207586652U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721411278.3U Active CN207586652U (en) | 2017-10-27 | 2017-10-27 | A kind of 3-dimensional digital hologram recording apparatus |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613810A (en) * | 2018-12-28 | 2019-04-12 | 马瑞利汽车零部件(芜湖)有限公司 | A kind of lamp system with three-dimensional stereo effect |
-
2017
- 2017-10-27 CN CN201721411278.3U patent/CN207586652U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613810A (en) * | 2018-12-28 | 2019-04-12 | 马瑞利汽车零部件(芜湖)有限公司 | A kind of lamp system with three-dimensional stereo effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Unit 03, 10 / F, t-park, 2001 Binhe Avenue, Nanyuan street, Futian District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Mengyun holographic technology Co.,Ltd. Address before: Unit 03, 10 / F, t-park, 2001 Binhe Avenue, Nanyuan street, Futian District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN MCLOUD HOLOGRAPHIC CULTURE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |